"If you could detect and recognize components via RF the way Spectre claims to, it would literally be transformative to technology. You'd be able to do radio astronomy in Manhattan."
"They simply cannot do this. They are using the classic trick of using wording to imply that it will detect every type of microphone, when all they are probably doing is scanning for Bluetooth audio devices. It's totally lame."
"Even if a device could detect a microphone's exact location, objects around a room can change how the frequencies spread and interact. The emitted frequencies could also be a problem. There haven't been adequate studies to show what effects ultrasonic frequencies have on the human ear."
Deveillance's Spectre device purports to locate nearby microphones by detecting radio frequencies and integrating nonlinear junction detection (NLJD) technology used by security professionals. However, critics argue that RF-based microphone detection is ineffective unless the sensor is immediately adjacent to the target. Engineers question the device's claims, suggesting it primarily detects Bluetooth audio devices rather than all microphone types. Environmental factors like room objects affect frequency propagation, complicating detection accuracy. Additionally, ultrasonic frequencies emitted by the device raise health concerns, potentially affecting human hearing and causing discomfort to pets. Deveillance acknowledges the need for further testing regarding pet safety and device effectiveness.
#microphone-detection-technology #rf-emissions-analysis #device-security-claims #ultrasonic-frequency-concerns #expert-skepticism
Read at WIRED
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